Jenins trunk tests (nightly only) fail quite often with OOM in Automaton/FST
tests
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Key: LUCENE-3463
URL: https://issues.apache.org/jira/browse/LUCENE-3463
Project: Lucene - Java
Issue Type: Bug
Reporter: Uwe Schindler
The nightly Job Lucene-trunk quite often fails with OOM (in several methods,
not always in the same test):
Example from last night (this time a huge Automaton):
{noformat}
[junit] java.lang.OutOfMemoryError: Java heap space
[junit] Dumping heap to
/home/hudson/hudson-slave/workspace/Lucene-trunk/heapdumps/java_pid38855.hprof
...
[junit] Heap dump file created [86965954 bytes in 1.186 secs]
[junit] Testsuite: org.apache.lucene.index.TestTermsEnum
[junit] Testcase: testIntersectRandom(org.apache.lucene.index.TestTermsEnum):
Caused an ERROR
[junit] Java heap space
[junit] java.lang.OutOfMemoryError: Java heap space
[junit] at
org.apache.lucene.util.automaton.RunAutomaton.<init>(RunAutomaton.java:128)
[junit] at
org.apache.lucene.util.automaton.ByteRunAutomaton.<init>(ByteRunAutomaton.java:28)
[junit] at
org.apache.lucene.util.automaton.CompiledAutomaton.<init>(CompiledAutomaton.java:134)
[junit] at
org.apache.lucene.index.TestTermsEnum.testIntersectRandom(TestTermsEnum.java:266)
[junit] at
org.apache.lucene.util.LuceneTestCase$2$1.evaluate(LuceneTestCase.java:611)
[junit] at
org.apache.lucene.util.LuceneTestCaseRunner.runChild(LuceneTestCaseRunner.java:148)
[junit] at
org.apache.lucene.util.LuceneTestCaseRunner.runChild(LuceneTestCaseRunner.java:50)
[junit]
[junit]
[junit] Tests run: 6, Failures: 0, Errors: 1, Time elapsed: 11.699 sec
{noformat}
Other traces:
{noformat}
[junit] Testsuite: org.apache.lucene.util.fst.TestFSTs
[junit] Testcase: testRealTerms(org.apache.lucene.util.fst.TestFSTs): Caused
an ERROR
[junit] Java heap space
[junit] java.lang.OutOfMemoryError: Java heap space
[junit] at org.apache.lucene.util.ArrayUtil.grow(ArrayUtil.java:338)
[junit] at
org.apache.lucene.util.fst.FST$BytesWriter.writeBytes(FST.java:927)
[junit] at
org.apache.lucene.util.fst.ByteSequenceOutputs.write(ByteSequenceOutputs.java:113)
[junit] at
org.apache.lucene.util.fst.ByteSequenceOutputs.write(ByteSequenceOutputs.java:32)
[junit] at org.apache.lucene.util.fst.FST.addNode(FST.java:451)
[junit] at org.apache.lucene.util.fst.NodeHash.add(NodeHash.java:122)
[junit] at
org.apache.lucene.util.fst.Builder.compileNode(Builder.java:180)
[junit] at org.apache.lucene.util.fst.Builder.finish(Builder.java:495)
[junit] at
org.apache.lucene.index.codecs.memory.MemoryCodec$TermsWriter.finish(MemoryCodec.java:232)
[junit] at
org.apache.lucene.index.FreqProxTermsWriterPerField.flush(FreqProxTermsWriterPerField.java:414)
[junit] at
org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:92)
[junit] at org.apache.lucene.index.TermsHash.flush(TermsHash.java:117)
[junit] at
org.apache.lucene.index.DocInverter.flush(DocInverter.java:80)
[junit] at
org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:78)
[junit] at
org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:472)
[junit] at
org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:420)
[junit] at
org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:568)
[junit] at
org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:366)
[junit] at
org.apache.lucene.index.IndexReader.open(IndexReader.java:317)
[junit] at
org.apache.lucene.util.fst.TestFSTs.testRealTerms(TestFSTs.java:1034)
[junit] at
org.apache.lucene.util.LuceneTestCase$2$1.evaluate(LuceneTestCase.java:611)
{noformat}
or:
{noformat}
[junit] Testsuite: org.apache.lucene.util.automaton.TestCompiledAutomaton
[junit] Testcase:
testRandom(org.apache.lucene.util.automaton.TestCompiledAutomaton): Caused an
ERROR
[junit] Java heap space
[junit] java.lang.OutOfMemoryError: Java heap space
[junit] at
org.apache.lucene.util.automaton.RunAutomaton.<init>(RunAutomaton.java:128)
[junit] at
org.apache.lucene.util.automaton.ByteRunAutomaton.<init>(ByteRunAutomaton.java:28)
[junit] at
org.apache.lucene.util.automaton.CompiledAutomaton.<init>(CompiledAutomaton.java:134)
[junit] at
org.apache.lucene.util.automaton.TestCompiledAutomaton.build(TestCompiledAutomaton.java:39)
[junit] at
org.apache.lucene.util.automaton.TestCompiledAutomaton.testTerms(TestCompiledAutomaton.java:55)
[junit] at
org.apache.lucene.util.automaton.TestCompiledAutomaton.testRandom(TestCompiledAutomaton.java:101)
[junit] at
org.apache.lucene.util.LuceneTestCase$2$1.evaluate(LuceneTestCase.java:611)
[junit] at
org.apache.lucene.util.LuceneTestCaseRunner.runChild(LuceneTestCaseRunner.java:148)
[junit] at
org.apache.lucene.util.LuceneTestCaseRunner.runChild(LuceneTestCaseRunner.java:50)
{noformat}
Almost every nightly test fails, history:
[https://builds.apache.org/job/Lucene-trunk]
We should maybe raise the max heap space or reduce doc counts/...
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